Improved burglae-amem



TO ALL WHOM ITvMAY CONCERN':

@uitrit faire @anni ffice.

BENJAMIN E. CUNNINGHAM AND JEFFERSON E. CUNNINGHAM, OE'ELOEA,

' ILLINOIS,

Letters Patent No. 72,459, dated December 2 4, 1.867'.

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Be it known that we, BENJAMIN F. CUNNINGHAM Aand JEEFEnsoN F. CUNNINGHAM, of Flora, is the county of Clay, andState of Illinois, have inventada new and improved Burglar-Alarm, for preventing burglarsv from entering a; door without alarming the inmates of' the house; and wc do hereby declare that the followinl is a fulland exact description thereof. referencefbeinglxad to the accompanying drawings, and to the'letters of reference-marked thereon. j;

To enableothers skilled-'in the art to' malte and use our invention, wc will proceed to describe its construetionandoperatoni -v Y The alarm parts and'bell are such or similar `tovthose used for attaching to clocks. We secure the alarm and bellona block of Wood-ol' sufficient size for practical use. We secure a hook, A, in the upper end of the block, to which the alarmlfislssecured. -Wesuspeiid' the alarm by placing the hook on the spindle of the door-lock'. -We make fas't one end of a'..IWire,'E,' close 'to the lower end of the block, then extending up until opposite the obviating dust.

hook A. A lever-wire, D,-'is arranged across the top of wire E. 'On a'hiuge, or its equivalent, Athe wire C, leading from the axle to which the verge is made fast, is bent down `and brought over on the outside of wire E. Close to the upper end of the block we secure sheet brass or tin for covering the works, for protection, and

Operation.

Bring down the end oi lever'D and place under a. wirecatch, which is secured in the edge of the block marked F. -While bringing down thelever-D brings back the upper end of' wire E, which cornes against wire C, which moves the lower verge-toothv deep in gear and cannot escape, the spring may bc wound up, and then it is ready for applying to the spindle of the lock. When suspended by the hook A, remove the lower end of lever D from the catch F, and place the opposite end of the lover against the centrepf the spindle, then, by turning the knob, it turns the spindle also, which causes the end of lever D to slip'o` and come forward withthe upper end of Wire E, which releases wire C and gives free oscapement to the verge, which causes the hammer to act on the bell and alarms. I l

What we claim as our invention,'and desire to secure by Letters Patent, is

The arrangement of lever-wireD, in combination with Wire E, for the purpose herein specified.

'BENJAMIN F. CUNNINGHAM,

JEFFERSON F. CUNNINGHAM.

Witnesses H. J. HANCOCK,

GEORGE EASTER. 

